Two of the best coffee beans in the world to grind up. Both Hawaiian. Kona Peaberry & Maui Peaberry.Peaberry, also known as caracoli, is a type of coffee bean. Normally the fruit of the coffee plant develops as two halves of a bean within a single cherry, but sometimes only one of the two seeds gets fertilized, so there is nothing to flatten it. This oval (or pea-shaped) bean is known as peaberry. Typically around 5% of all coffee beans harvested are of this form.